Internal-combustion engine



5. Wi MUHPIIY, INTERNAL corNBussoN ENGINE.

APPLICATION FILED FEB. I0, 1919.

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l APPLICATION FILED FEB. if), E919. 1 i {Symp-f 7D f\ 1 16573 L@ QS j m@miv/m May EL ,Ld/L

3 SHEETS-SHEET 2-.

PETER lW. MURPHY, 0F CHICAGO, ILLINOIS, ASSIGNOR TO MU COMPANY, 0FCHICAGO, ILLINOIS,

ENGINEERING A CORPORATION 0F MICHIGN.

INTERNAL-COMBUSTION ENGINE.

.Speeication of Lettere Patent.

Application filed February 10, v191.9. Serial'No. 276,194.

To all whom z'tmay concern.'

Be it known that I,- PETER MURPHY, .a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Internal-Combus--Engines, of which the following is av tion full, clear, concise, andexact description, reference being had to the accompanying drawings,forming a part of this specification.

My invention relates to internal combustion'engines and has to do morteparticularly with devices wherein the cylinders and pistons are disposedaround almain shaft and parallel thereto, and operating upon a camcarried by the main shaft for the purpose of rotating it. One. of theobjects of my invention is to provide an improved and simplified deviceof this character which is also cheap to manufacture and adapted fordriving automobiles in addition to other general uses. Another featureof my invention is the use of a clutch which is located within theengine, being preferably placed within the driving cam carried upon themain shaft. A further object of my in.

vention is to provide an improved and simplified wear take-up device inconnection with the slides for supporting the cam driving rollers. f

For a better understanding of 'my invention reference is to be had tothe accompanying drawings in which Figure 1 is a longitudinal sectionthrough the engine along the line 1, 1 of Fig. 2;

F ig. 2l is an end view of F ig. 1;

Fig. 3 is a sectional view through the ball and socket connectionbetween the piston and roller carrying slide Fig. 4C is a sectionthrough the middle part of the engine showing more particularly the Yarrangement of the wear take-up device; and

Fig. 5 is a view cylinder-head showing the arrangement of the valveoperating mechanism and the clutch operating lever.

Referring now more in detail to my invention I have shown one of a fourcylinder type having two cylinders at each end, said cylinders being inopposed pairs and con.- nected to a slide carrying rollers operating upoa driving cam carried by the main sha f the slide along line 5, 5 insidethey these lthrough the clutch operating sleeve 10 and being adjusted tothe disk clutch 12 and supported in a bearing 13 inside the drum 8. Theclutch sleeve 10 is operated by means of a yoke 14 connected with theusual clutch pedal 1?. Thus as the pedal 14a is operated the engine isthrown into or out of operative connection with the drive shaft 11 bythe spring pressed clutch 12, which clutch is acted upon by the spring15.

For the purpose of rotating the cam 7 I provide cylinders 15, 16, 17, 18disposed parallel to the main shaft and arranged in opposed pairs, thecylinders 15, 16 being opposite each other and connected to the rollercarrying -slide 19 on which is mounted a pair of rollers 20, 21 actingupon opposite faces of the cam 7. In order to take up any wear which mayoccur by the operation of the lslide 19, I provide wear take-upmechanism in the form of adjustable gibs 22, 23, 24 which are acted uponby adjusting screws 25 held in place by suitable lock nuts.

For the purpose of connecting the slides 19` with the pistons I providea piston rod 26 having a ball and socket connection to 19 and piston 27,each joint comprising a sphericallyliollow hub 27a and nut 28 whichisthreaded into the hub so as to liold the rod in place. It will benoted that the nut 28 has a holesmaller than the diameter of the balland in order to place these nuts upon the shaft 26 I preferably make theshaft in two pieces, one of the heads being screwed on to the end of theshaft as shown more clearly in Fig. 3.

It will thus be apparent that even though the cylinders and slide 19 donot 'line up, either in original manufacture or due to wear, the balland socket connection between parts permits operation thereof with-Patented May 31,1921.

In the preferred embodiment of my invendrum 8 carries an extension outbinding as would be the case where a rigid connection is used.

. Now as to the outer casings vof the engine, these comprisea middlecasing 29 carrying suitable .intermediate heads 30 and 31 an cylindercasings 32, 33 having suitable cylinder heads 34, 35. Each cylinder hasan intake valve and exhaust valve, the intake valve 36 for cylinder 15being shown and exhaust valve 37 for cylinder 17 being shown. lThesevalves are suitably supported within the cylinder casings and areoperated by means of bell-crank levers 38, 39, respectively coperatingwith the intake cam 40 and exhaust cam 41. An intake manifold 42 (Fig.2) is connected with the' two intake valve chambers on opposite ends ofthe engine on one side thereof, andA the intake 'manifold 43 isconnected with the `o posite intake valve chambers on the other s1de ofthe engine as shown in Fig. 2. Exhaust outlets as 44, 4 5 are connectedwith vthe various exhaust valve chambers.

What I claim as new and desire to secure by Letters Patent is:

1. An internal combustion engine comf inders and rotated by the pistons,a driveshaft, clutch mechanism connecting the main and drive shafts andmeans to take up wear between the pistons andthe cam.

2. An internal combustion engine comprising a main shaft, cylinders andpistons disposed parallel to the shaft, a cam carried by the main shaftand rotated by the pistons, a drive shaft, and clutch mechanism carriedwithin the main shaft cam connecting the main and drive shafts.

3. An internal., combustion engine comprising a main shaft, opposedcylinders and pistons disposed parallel to the shaft, slides connectedto the pistons', means to adjust said slides, a cam carried by the mainshaft between the opposed cylinders, rollers carf .ried by the slidesand engaging the opposite sides of the cam, a drive shaft extending. be-

tween the cylinders and pistons at one end,

and clutch mechanism l connecting the main prising a main shaft, opposedcylinders and pistons disposed parallel to the shaft, a cam carried bythe main shaft between. the

opposed cylinders and rotated by the pistons, a drive shaft extendingbetween the cylinders and pistons at one end, and clutch mechanismcarried within the main shaft cam connecting the main and drive shafts.

5. An internal combustion engine comprising a main shaft, a' cylinderand piston disposed parallel. to the shaft, a projecting^ rib'camcarried by the shaft, a slide movable parallel to the main shaft, andconnected 'with the piston by a ball and socket joint,

a pair of rollers on. the slide engaging the opposite sides of the camfor rotating the latter, said cam and said rollers having co-v operatinginclined faces, a .casing around the cam and main shaft, and a supportvfor the slide including adjustable ibs suitably .carried bysaid casingfor argljusting the rollers relatively to the cam and slidably receivingsaid slide.

6. An internal combustion engine comprising a cylinder, and piston, aslide, a connecting rod, and-suitable ball and socket joints connectingboth the slide and piston with the rod, the ballof one joint beingdetachable from the connecting rod to permit assembling of the parts.

7. An internal combustion engine comprising a main shaft having a cam,two pistons disposed upon diametrically opposite sides of the shaft andparallel thereto, double cylinders for the pistons surrounding theshaft, intake and exhaust .valves for each cylinder, adjustable rollerconnections between the pistons and 'the cam, and cams on the shaft foractuating both of the valves, the cam faces thereof projecting radiallyof said shaft. v

In witness whereof, I hereunto subscribe my namethis 31st day ofJanuary, A. D., 1919.

PETER w. MURPHY.

